Shop-Vac 5 Gallon 4.0 Peak HP Wet/Dry Vac Review: A $79.99 Stainless Tank Sized for Portability

A $79.99 stainless drum, sized around its handle rather than its capacity

At $79.99 the 5430162 buys 5 gallons of tank, 4.0 peak HP, all three pickup modes — wet, dry, blower — and a stainless drum that stands 19 inches tall on a 13-1/2 by 14-1/2 inch footprint, per the maker's spec sheet. The store's weight field lists 14.33 pounds; the spec sheet prints no unit weight. The three modes are common in the line — the same-day 8-gallon utility vac also lists a rear blower port — so what this tier adds at $79.99 is the stainless drum in a 19-inch package, with the filter set already in the box.

Shop-Vac's own 8-gallon utility vac, model 5922805, listed at $80.71 the same day — 72 cents more for 3 more gallons and half a peak HP more. Anyone with floor space for an 8-gallon should compare those two first; the 5-gallon's argument is the 19-inch height, the carry handle and a caster base that stores on a bench.

Who the 5-gallon fits, and who should spend differently

The fit is concrete. A garage or basement where spills and debris happen but the vac lives on a shelf: 19 inches tall slides under a workbench, and the motor head carries a top handle. The 7-foot hose plus the 6-foot cord give a 13-foot combined reach per the page, so an extension cord belongs in the plan for anything beyond one bay — the manual flags that a liquid-pickup cord connection must stay clear of the liquid. Water, sawdust, drywall scraps and the blower port for sidewalk clippings all draw on the same motor.

Three skips are equally concrete. Capacity first: the 8-gallon at $80.71 holds 3 more gallons for less than a dollar more. Quiet second: this model carries no decibel rating, and the Whisper-series 5-gallon — up to 60 percent quieter by its own claim, also without a published number — listed at $156.24. Third, commercial use: the warranty page excludes products used commercially, so a jobsite buyer is spending $79.99 on a residential machine. A household that only clears floor dust keeps its existing vacuum; this one earns its space on wet and debris work.

The gallon ladder, and what peak HP actually buys

Shop-Vac's own ladder, all direct-store prices on 2026-10-01: 2.5 gallons at $61.24, a 5-gallon polymer-housing model at $73.91, this stainless 5-gallon at $79.99, the 8-gallon at $80.71, and 16 gallons at 6.5 peak HP for $158.39. Between $73.91 and $79.99 the tank changes from polymer to stainless for $6.08; the 2.5-gallon gives up capacity and runs a 6-foot hose and cord. The step to 4.5 peak HP in the same 5-gallon stainless format costs $99.99 — $20.00 more for half a peak HP, in a listing that otherwise describes the same wet/dry/blower design.

Peak HP is the only motor figure printed for this model: the spec sheet shows 4.0 Peak HP with a footnote marker, and Shop-Vac publishes no CFM or water-lift figure for this model. With airflow unpublished, the ladder's one precise data point is the 8-gallon rung, whose page publishes 95 CFM and 55 inches of sealed pressure; everywhere else the comparison runs on price, tank size and Shop-Vac's own noise claims. The wall-mount 9522236 at $169.99 keeps the 5-gallon format but hangs on the garage wall with an 18-foot plus a detachable 7-foot hose and bag collection — $90 over this unit buys reach and wall clearance, not motor power.

Wet pickup, dry pickup, and the filter stack each one needs

Water changes the routine. For wet pickup the manual fits the foam sleeve over the lid cage and describes an internal float that rises with the liquid level and seats against a shut-off, protecting the motor as the tank fills. Emptying means stopping the motor, pulling the cover and pouring; the manual's drain-cap procedure applies to models equipped with a tank drain, and no drain shows on this item's page or in Shop-Vac's own parts graphic, so plan on carrying the tank to a drain. A filter saturated by wet work can mist exhaust until it dries or gets swapped; the manual documents that, too.

Dry pickup splits by dust size. Household debris runs with the disposable filter bag; soot, cement, plaster and drywall dust require the cartridge filter and a collection bag together, because the manual cautions that those fine particles pass through foam and reach the motor or the room. The matching part for the fine-dust jobs is the maker's Type H high-efficiency bag, $18.99 for two on the store that day. Two care rules bound the system: the manual's filter rule is flat — rinse and air dry, machine washing excluded — and the manual instructs emptying the tank once a job is done to avoid spontaneous combustion of loaded debris.

The year-one bill beyond the $79.99

The year's real spend sits in consumables. Type E standard filter bags run $14.99 per three-pack on the maker store — $5.00 a bag — and no replacement interval appears in the bag listing or the manual. A year of weekend renovation cleaning at one bag a month runs $59.96 (12 x $14.99 ÷ 3). The fine-dust Type H bags cost $18.99 for two, $9.50 a bag; six bags across a drywall season is $57.00 (6 x $9.50).

The cartridge filter is the second line. Shop-Vac's own cartridge listings print a 4-to-5-month replacement interval under regular use, which implies two to three cartridges a year; at the $39.20 two-pack that is $39.20 to $58.80 ($19.60 x 2-3). Two fit questions hang on that line: the two-pack's compatibility list names other model series, the $22.72 Type U cartridge covers 6 gallons and up, and the store names no numbered replacement cartridge for the 5430162 itself. The $7.72 foam sleeve is a replace-when-crushed part. A heavy first year — monthly bags plus three cartridges — adds up to $118.76 ($59.96 + $58.80), all at checked maker prices.

Both channels allow 30 days to send the vac back, with different fine print: the maker store wants it in as-new, unopened packaging and charges the return freight to you, while Amazon's return row pairs that month with a refund or a replacement and keeps at least one return method free.

When the 8-gallon wins, and when the household vacuum already covers it

Those day-one prices force a size check. Shop-Vac's 8-gallon 5922805 listed at $80.71 with a 4.5-peak-HP motor — $0.72 and 0.5 peak HP above this 5-gallon. Shop-Vac's store weight fields cannot settle the size question: they list 37 pounds for the 8-gallon, 30 for the 4.5-peak-HP 5-gallon and 25 for the 16-gallon against 14.33 for this unit, an ordering that rules them out as unit weights. The 5-gallon defends itself on stairs, bench storage and a half-size wet load to haul to a drain; the 8-gallon wins capacity per dollar, and a basement flood or whole-shop cleanup belongs to the 16-gallon 6.5-peak-HP SVX2 at $158.39.

The other boundary sits indoors. This machine's documentation is written for water on the floor, drywall sanding and renovation debris, and supplies the parts for them: a float shutoff for liquids, a foam sleeve for wet work, and the cartridge-plus-bag combination the manual requires so fine dust does not exhaust back into the room. The 6-gallon tier dropped out of the same-day ladder — model 5760611 shows a $0.00 price in Shop-Vac's product data, with no buyable listing at the maker — which pins the live family choice at 5 versus 8 gallons.

What the maker leaves unpublished

Four things stay unknown. No airflow (CFM), water-lift or decibel figure exists for the 5430162 in Shop-Vac's store, manual or spec sheet, so suction and noise rest on the 4.0-peak-HP label and the Whisper line's unquantified 60-percent claim. No maker unit weight is published — 14.33 pounds is the store's weight field, repeated as 14.3 on Amazon's listing. The cord length conflicts inside Shop-Vac's own material: 6 feet on the item page and in the Amazon listing's title line, 7.5 feet on the printed sheet of specs. And the store names no numbered replacement cartridge for this SKU.

A published decibel figure near the Whisper model's territory, a named replacement cartridge priced below $19.60, or the 8-gallon falling under $79.99 would each move a specific buyer's decision. Until airflow or noise numbers surface from Shop-Vac for this 5-gallon, the choice stays a price-and-size decision.